Q: Why standardize the HCl before determination the NaOH normality.
A: Hydrochloric acid, HCl, is NOT suitable for use as a primary standard because although it is…
Q: this experiment is a titartion experiment and the question is how would not boiling the water affect…
A: A titration is an analytical procedure in which a reaction is run under carefully controlled…
Q: Why is salt a solid?
A: The formation of salt takes place by the reaction of a acid and a base. On the basis of the nature…
Q: Define the term electromotive?
A: To find: The definition of electromotive
Q: Draw a balanced chemical equation (including any necessary charges) for the formation of a…
A: A balance chemical reaction has same number of each element in the both product and reactant side.
Q: What types of forces must be broken when an ionic solid dissolve in water. What new forces are…
A: When any particular solute (ionic compound) is dissolved in H2O (solvent), a solution is formed as a…
Q: II. Factors Affecting Electrical Conductivity 1. What is the effect of varying the amount of solvent…
A: Electrical conductivity is the power of solution to conduct electricity. Siemens per meter is the…
Q: Question 18
A: The name of my favourite base is Sodium bicarbonate.The chemical formula of sodium bicarbonate is…
Q: Compare strong and weak electrolytes using a Venn Diagram. Give specific examples.
A:
Q: Water will mix with sodium chloride, but not oil. This is known because of the principle.
A: Water and sodium chloride are polar compounds. Oil is a non-polar compound.
Q: Conclusion in water: its properties and purification
A: Properties of water - - > 1 - Water is polar in nature 2 - Water has high surface tension 3 -…
Q: If a cell is in a hypertonic solution, the cell is said to be in a __________ state.
A: GivenA cell is placed in the hypertonic solution
Q: Consider all the salts that could be made by using combining choosing the cation(s) from the list…
A: ΔsolutionS∘ has not been written in proper format. So this part cannot be answered. Only the first…
Q: A drop of bromthymol blue and a drop of phenolphthalein are added to a beaker of distilled water.…
A: In solutions having a pH 9 or above, phenolphthalein is pink. In solutions having a pH below 9, the…
Q: What are the common uses of ionic liquids?
A: IONIC LIQUIDS: These liquids are completely ionic in nature. At low temperatures, ionic liquids in…
Q: Define the following terms. End point
A: The end point describes the equivalence point of the titration.
Q: In one experiment, zinc and carbon rod connected to a power supply are immersed in a beaker filled…
A: Sjsj
Q: question b. According to the graph, is the dissolution of NH4NO3 endothermic or exothermic. Expla
A: The graph for change in temperature after the addition of NH4NO3 (s) with time is given below :
Q: 12. Calculate the concentrations (mol/L) for each cation in the original (undiluted) sea water.…
A: Complexometric titration A titration which is based upon the formation of a coordination complex is…
Q: the boiling point of thi
A:
Q: If the amount ethyl alcohol is greater than the amount of water, which is the solvent?
A: The amount of ethyl alcohol is greater than the amount of water. we have to tell which one is the…
Q: Match the solutions to the descriptions of the freezing points.
A: A dilute solution containing non volatile solute exhibits some characteristc properties , these…
Q: Calculate the ion concentration for calcium and sulfate second photo is possible answer choices…
A: Answer: [Ca2+] = 0.3749 M and [SO42-] = 6.4 ×10-5 M.
Q: as the moles of salt added are increased, what happens to the melting point of water.
A: When salt added to the ice ,melting point decreased. It caused more ice become water molecule. Two…
Q: molality of
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Example: What is the molali
A: Given, mass of NaOH = 10 g Mass of water = 500 g Molar mass of NaOH = 40 g/mol Molality =?
Q: IMFA of water and sodium chloride
A: Matter exists in 3 different physical states, namely solid, liquid and gaseous states. The 3 states…
Q: The value of Kw increases with increasing temperature. Is the autoionization of water endothermic or…
A: The chemical process in which water molecules gets dissociates and forms H3O+ and OH- is called as…
Q: The amount of HCl required to consume 100g of Calcium Carbonate completely is
A: We will use stoichiometry of the reaction.
Q: If an electrical current can run through a solution. It is said to contain : ? Choose one : water or…
A: The given option are: water, electricity, non-electrolytes, and electrolytes.
Q: Mineral oil is not as good as water at dissolving salts. Do we think the bonds in mineral oil are…
A: Mineral oil is any of colourless, odourless, light mixture of higher alkanes from a mineral source…
Q: sodium (as NaCl), calculate the percent strength of sodium chloride in the sc
A: According to the question, one liter of fluid contains 5% dextrose and 30 mEq NaCl. Molecular mass…
Q: prepared by disso enough water to produce a total volume of 1.5 L? Ro place.
A: Molarity is defined as the mole of solute dissolved in one litre of solution it is the concentration…
Q: The colligative property is influence by the amount of solute that are present. The amount of solute…
A: Colligative properties are the physical changes that result from adding solute to a solvent.…
Q: Suspensions also show Tyndall effect (compare)
A: Suspensions also show Tyndall effect that has to be compare.
Q: Why is water able to easily dissolve ionic compounds? A:The electron transfer in ionic compounds…
A: There are ions of opposite charges in the ionic compounds. poles of water molecules are attracted to…
Q: Explain why water molecules gather ions much more effectively?
A: When either a positive or negative charge is present on an atom then it is called an ion.
Q: What will be the result of increasing the temperature on the rate of dissolution when dissolving…
A: The effect of increasing temperature on the rate of dissolution of a salt in water.
Q: What types of forces must be broken when polar molecular substance dissolves in water. What new…
A: For molecules, in which constituent atoms never share the electrons uniformly due to…
Q: (a) Use a table of vapor pressure of water at various temperatures to determi water vapor, PH,0
A: We have to find the partial pressure of water at temperature 22°C
Q: What is the lattice constant ? if the lattice has 400 lines per mm?
A: Given, Number of lines (N) per mm = 400 lines/mm = 400,000 lines/m, Then grating space (d), d…
Q: 31. Sea water contains dissolved magnesium at 0.1292% by mas How many grams magnesium are in 1000g…
A: Mass of solute can be calculated as follows
Q: Compound Lattice Energy (kJ/mol) NaF 930 2978 The energy required to dissociate an ionic solid into…
A:
Q: How do you calculate the moles of water hydration per mole if anhydrous?
A: Some solid compounds contain higher quantities of water that is bound to the compound very strongly…
Q: - Explain why the chemical composition of water (H,O) is always the same.
A: WATER: Water is a transparent and a tasteless chemical compound. Water has no color and odor. Water…
Q: HCI which is a strong acid yields a definite ionization constant. This statement is * possible
A: As HCl is strong acid.
Q: ase choose the correct term to fill in the blank (increase / decrease / not change) for the…
A: Given that we have excess of NaCl in the saturated solution.
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- Do (8) (b) asap pleaseUse a Born-Haber cycle (Sec. 5-13) to calculate the lattice energy of MgF2 using these thermodynamic data. Compare this lattice energy with that of SrF2, −2496 kJ/mol. Explain the difference in the values in structural terms.(k) Antimony (V) iodide (1) Gold (III) sulfide (m) Platinum (IV) phosphide (n) Bismuth (II) perchlorate (0) Mercury (I) cyanide
- What is the enthlapy of the reaction? What is the bond energy? KCl(s) ─H2O→ K+(aq) + Cl-(aq)True or False: Water is considered a chemical element.Which reaction has a positive AS? O CaO (s) + CO2 (g) → CaCO3 (s) O N2 (g) + 3H2 (g) – 2NH3 (g) O 2s03 (g) – 2SO2 (g) + 02 (g) O Ag+ (aq) + Cl- (aq) → AgCl (s)
- The attractive force between two ions in Na20, Fc is 8.64x10-9N. What is the bond length a0 (in nm) given that valence of the charged Na+ is Z1=+1, for O-, is Z2 =-2, the charge of a single electron q is 0.16x10-18 C and the proportionality constant k0=9x109 V.m/C? Note that K=k0(Z1q)(Z2q) and that 1 V.C = 1 J.(b) (i) Draw the Lewis structure of methanol, CH3OH(ℓ). (ii) Show with a simple diagram how methanol dissolves in water. Explain.Ammonium chloride, NH4Cl, is a very soluble salt in water.(a) Draw the Lewis structures of the ammonium and chlorideions. (b) Is there an N—Cl bond in solid ammonium chloride?(c) If you dissolve 14 g of ammonium chloride in 500.0 mLof water, what is the molar concentration of the solution?(d) How many grams of silver nitrate do you need to add tothe solution in part (c) to precipitate all of the chloride as silverchloride?